ChemicalBook--->CAS DataBase List--->2081-44-9

2081-44-9

2081-44-9 Structure

2081-44-9 Structure
IdentificationMore
[Name]

Tetrahydro-4-pyranol
[CAS]

2081-44-9
[Synonyms]

2H-PYRAN-4-OL, TETRAHYDRO
4-HYDROXYTETRAHYDROPYRAN
POH
TETRAHYDRO-2H-PYRAN-4-OL
TETRAHYDRO-4H-PYRAN-4-OL
TETRAHYDRO-4-PYRANOL
Tetrahydropyran-4-ol
4-HYDROXYTETRAHYDROPYAN
4-Hydroxytetrahydro-2H-pyran
2H-Pyran-4-ol
Oxan-4-ol
3,4,5,6-Tetrahydro-2H-pyran-4-ol
[EINECS(EC#)]

218-210-8
[Molecular Formula]

C5H10O2
[MDL Number]

MFCD00006633
[Molecular Weight]

102.13
[MOL File]

2081-44-9.mol
Chemical PropertiesBack Directory
[Boiling point ]

87 °C/15 mmHg (lit.)
[density ]

1.071 g/mL at 25 °C(lit.)
[refractive index ]

n20/D 1.462(lit.)
[Fp ]

190 °F
[storage temp. ]

Sealed in dry,Room Temperature
[solubility ]

Chloroform, Methanol
[form ]

Oil
[pka]

14.61±0.20(Predicted)
[color ]

Clear Colourless
[BRN ]

102736
[InChI]

InChI=1S/C5H10O2/c6-5-1-3-7-4-2-5/h5-6H,1-4H2
[InChIKey]

LMYJGUNNJIDROI-UHFFFAOYSA-N
[SMILES]

C1OCCC(O)C1
[LogP]

-0.440 (est)
[CAS DataBase Reference]

2081-44-9(CAS DataBase Reference)
[NIST Chemistry Reference]

Tetrahydro-4H-pyran-4-ol(2081-44-9)
Safety DataBack Directory
[Symbol(GHS) ]

Corrosion (GHS05)
GHS05
[Signal word ]

Danger
[Hazard statements ]

H318
[Precautionary statements ]

P280-P305+P351+P338
[Hazard Codes ]

Xi,Xn
[Risk Statements ]

R41:Risk of serious damage to eyes.
R36/37/38:Irritating to eyes, respiratory system and skin .
R20/22:Harmful by inhalation and if swallowed .
[Safety Statements ]

S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S39:Wear eye/face protection .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S23:Do not breathe gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer) .
[RIDADR ]

1993
[WGK Germany ]

3
[Hazard Note ]

Irritant
[REACH Registrations]

Active
[HazardClass ]

IRRITANT
[HS Code ]

29329990
[Storage Class]

10 - Combustible liquids
[Hazard Classifications]

Eye Dam. 1
Raw materials And Preparation ProductsBack Directory
[Raw materials]

Sodium hydroxide-->Hydrochloric acid-->Diethyl ether-->Tetrahydrofuran-->Dichloromethane-->Magnesium sulfate-->Lithium Aluminum Hydride-->Aluminum chloride-->Phosphoric acid-->Sodium phosphate monobasic-->Ethylene-->3-Chloropropionyl chloride
[Preparation Products]

1-(Tetrahydro-2H-pyran-4-yl)hydrazine-->4-Bromo-tetrahydropyran-->Tetrahydropyran-4-carbaldehyde-->2-(tetrahydro-2H-pyran-4-yloxy)-5-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)benzonitrile-->4-Iodotetrahydro-2H-pyran-->Tetrahydropyranyl-4-acetic acid-->3-Pyridinol, 5-chloro-6-[(tetrahydro-2H-pyran-4-yl)oxy]-
Material Safety Data Sheet(MSDS)Back Directory
[msds information]

Tetrahydro-4-pyranol(2081-44-9).msds
Hazard InformationBack Directory
[Chemical Properties]

Colorless transparent liquid
[Uses]

Tetrahydro-4-pyranol is a building block of various organic compounds and pharmaceuticals.
[Synthesis]

Tetrahydro-4H-pyran-4-one

29943-42-8

Tetrahydro-4-pyranol

2081-44-9

General procedure for the synthesis of tetrahydropyran-4-ol from tetrahydropyranone: To a tetrahydrofuran (THF, 25 mL) solution of tetrahydropyranone (5.0 g, 50 mmol), which was cooled to 0 °C, a THF (50 mL) suspension of lithium aluminum hydride (LiAlH4, 3.8 g, 0.1 mol) was slowly added. The reaction mixture was stirred at 0 °C for 30 min, followed by sequential addition of water (3.8 mL), 15% aqueous sodium hydroxide (NaOH) solution (3.8 mL) and water (11.4 mL) to quench the reaction. The mixture was filtered and the solid was washed with ethyl acetate (70 mL x 2). The filtrates were combined and evaporated to give tetrahydropyran-4-ol (5.09 g, 99% yield).

[References]

[1] Patent: WO2008/88881, 2008, A1. Location in patent: Page/Page column 39
[2] Patent: US9301951, 2016, B2. Location in patent: Page/Page column 125
[3] Chemistry - A European Journal, 2018, vol. 24, # 62, p. 16526 - 16531
[4] Patent: US2010/76029, 2010, A1. Location in patent: Page/Page column 35
[5] Patent: US2011/71196, 2011, A1. Location in patent: Page/Page column 18-19
Spectrum DetailBack Directory
[Spectrum Detail]

Tetrahydro-4-pyranol(2081-44-9)MS
Tetrahydro-4-pyranol(2081-44-9)1HNMR
Tetrahydro-4-pyranol(2081-44-9)13CNMR
Tetrahydro-4-pyranol(2081-44-9)IR1
Tetrahydro-4-pyranol(2081-44-9)IR2
Tetrahydro-4-pyranol(2081-44-9)Raman
Well-known Reagent Company Product InformationBack Directory
[Sigma Aldrich]

2081-44-9(sigmaaldrich)
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